Process for the preparation of polyhydric phenol compounds

Details Process for the preparation of polyhydric phenol compounds Process for the preparation of polyhydric phenol compounds

1995-01-26

1996-09-17

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31160

Patent

active

055569951

ABSTRACT:
A process for preparing the polyhydric phenol compounds represented by the formula (I): ##STR1## (wherein R.sub.1, R.sub.2 and R.sub.3 represent independently hydrogen atom, alkyl group, etc.) which comprises subjecting the compounds represented by the formula (II): ##STR2## (wherein R.sub.1, R.sub.2 and R.sub.3 are as defined above) to a condensation reaction with pyrogallol in the presence of an organic solvent and an acid catalyst.

REFERENCES:
patent: 5436107 (1995-07-01), Tomioka et al.

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